/usr/lib/mozilla/plugins/libflashplayer.so (I tried both 10 and 11) is working in Firefox 8 and Seamonkey 2.0.14 but not in Opera 11.52 or 12.02, where the plugin is not detected though the other plugins (gxine etc) are (preferences advanced content).

ldd /usr/lib/mozilla/plugins/libflashplayer.so
reveals a bunch of missing libraries, which are found in either firefox
or seamonkey (top directory - I had not installed the packages but just
unpacked them in /mnt/hda8).
Edit the LD_LIBRARY_PATH in /etc/profile, adding at the end before the "
the location of firefox or seamonkey after a : (in my case :/mnt/hda8/firefox").
Reboot (or do whatever else might make linux recognize the new profile).
I had already posted the solution for Pulp linux. Opera apparently expects these libraries to be present while Mozilla browsers are supplied with them.
Opera will not recognize plugins with missing supporting libraries.

You could, instead, copy the missing libraries to /usr/lib, but then they won't get updated when you update the Mozilla browsers.

No, because it is designed for Wary, Racy, and Puppy versions which include Seamonkey and, therefore, already have the required mozilla libraries._________________Classic Opera 12.16 browser SFS package for Precise, Slacko, Racy, Wary, Lucid, etc available here

In Pulp Linux (which does not come with Seamonkey) Opera 11.50 would not work with flash (empty black rectangle, but no complaints about upgrading flash after I added the missing libraries to the library path), until I switched from Xvesa to Xorg.
Ctrl-Alt-Backspace (exit X)
cd /usr/X*/bin
ln -sf Xorg X (symlink Xorg instead of Xvesa to X)
xwin (reload X)

You could instead do
Menu, Exit to prompt, Xorgwizard, choose Xorg.

Seamonkey 2 worked with flash and Xvesa.

Puppy 4.3.1 comes with Seamonkey 1.1.18, but I was getting the complaint about upgrading flash in Opera 11 and 12. I think Seamonkey crashed when I tried to play archive.org movie - flash libraries may be too old?

Opera 12.02 gives me a black rectangle with a message to download and install a plugin when I mouse clicked.

So I installed one of the many Youtube downloaders, and downloaded flv and mp3.
gxine complained it was missing libmozjs.so, found in Seamonkey 1.1.18 and 2.0.14 but not 2.12.1. I copied it from 2.0.14 to /usr/lib.

Click on Downloads tab, then on the mp3 file, and gxine now plays it.
It will not play the flv (with defaultmediaplayer), only the title, The mp4 is smaller.

Opera 11.52 plays Youtube directly. My download was about 10 MB/min.
Is there an Smplayer 0.8.1 for Puppy yet? It has a Youtube Browser.

I am a little puzzled here. Why would Opera need mozilla libs in order to run flash player?

Is it something to do with the fact that libflashplayer.so is normally installed into /usr/lib/mozilla/plugins by .pet packages of flash player in Puppy? Opera seems to be looking there for plugins anyway, but it does also have its own plugins folder (where it also looks) at (in the case of terryphi's sfs) /opt/opera/lib/opera/plugins so perhaps if libflashplayer.so were installed there it would work even in Puppies without any mozilla browsers installed.

I have been doing a bit of testing of Opera and it seems OK although on a couple of machines I did get the problem of flash player detected but not working plus some other glitches. Most obvious give-away that something is wrong is when the tray icon is not displaying properly as a red letter "O". This does seem to be related to graphics driver settings because in both cases on 2 different computers, one running Wary and the other running Lucid, I found that changing the colour depth from 16 to 24 cured the problem._________________Oscar in England

ldd libflashplayer.so showed that
puppy 4.3.1 did not have on the library path a few libraries needed for flash, which come with seamonkey and firefox but not opera. Flash used to come in a separate version for opera, I recall. Why would flash in Opera sometimes only work with Xorg not Xvesa? Maybe I was using 16-color Xvesa.

I am a little puzzled here. Why would Opera need mozilla libs in order to run flash player?

Flask Player needs the mozilla libraries to work. Opera assumes that they are already present and does not cause confusion by duplicating them. Many mainstream Linux distros (Ubuntu, Linux Mint, Puppy, etc) include a Mozilla browser (Firefox or Seamonkey) as default browser and so the libs are already present. Some Puppy derivatives including Saluki have chosen not to include a Mozilla browser as default. However, I believe Jemimah made available a .pet of the libraries for Saluki users._________________Classic Opera 12.16 browser SFS package for Precise, Slacko, Racy, Wary, Lucid, etc available here

By the way, is anyone else finding that Yahoo pages display in a very basic form with no images?
Entering http://uk.yahoo.com but the address bar shows an inserted "m" thus:- http://uk.m.yahoo.com as if something is forcing a simplified (mobile?) version of the page._________________Oscar in England

By the way, is anyone else finding that Yahoo pages display in a very basic form with no images?
Entering http://uk.yahoo.com but the address bar shows an inserted "m" thus:- http://uk.m.yahoo.com as if something is forcing a simplified (mobile?) version of the page.

I don't normally use Yahoo but I checked the URL and confirm that for Opera it delivers uk.m.yahoo.com. I will report it to Opera devs.

If this site is important to you you could try masquerading as Firefox for this URL. Right click> edit site preferences>Network>browser identification._________________Classic Opera 12.16 browser SFS package for Precise, Slacko, Racy, Wary, Lucid, etc available here

Flash works in Seamonkey and Firefox but not Opera 11 (or 12). Even the little moving ad for R1Soft in the forum is non-moving, and Youtube gives me a plain black rectangle. Xorg (I don't see any way to choose color depth). libflashplayer.so in /usr/lib/mozilla/plugins has all dependencies (I put them on the path).

I can't find any Flashblock or Stop Autoplay for Seamonkey 2.12 - how do I block the moving ads?

Is there some reason why your sfs is structured with (except for the desktop file) the /opt/opera prefix?

I downloaded the "Other Linux" tarball from the Opera website just to take a look and thought about constructing a .pet but my instinct was to arrange the file structure with the prefix /usr throughout. Main binary is at /usr/lib/opera/opera and I put a basic shell script in /usr/bin which executes it with an argument to specify the share directory at /usr/share/opera. Are you aware of any problem with doing it this way or is it just a case of several equally valid ways of doing it?

The .pet seems to install and surf OK. Performance seems the same as your sfs. Not sure about such things as updating and printing but no errors or warnings in console._________________Oscar in England

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